An administrator from Hartford Public Schools who resigned amid a police investigation is in police custody, the NBC Connecticut Troubleshooters have learned.

Eduardo Genao faces one count of risk of injury to a minor and his bond was set at $50,000.

Last week, Genao resigned as executive director for compliance for the school district.

Sources said the investigation involves allegations of inappropriate text communication with a minor out of state.

"He began texting her. I guess she ignored it at first because she thought it was him being nice," the victim's mother told Jill Konopka last week.

The text messages soon became inappropriate, the mother said.

"It became very graphic," she told the NBC Connecticut Troubleshooters.

On Thursday, she issued a statement about the arrest.

"Thank you to the Hartford Police Department for doing their due diligence in seeing that Eddie Genao answers for his wrongs and not allowing this horrible experience for my daughter and I to be in vain. Their quick response and handling of this matter demonstrates their ethic when it comes to children and they are to be commended. It is an example the HBOE should follow in cases such as these."

After Genao resigned, a school spokesperson said they were fully cooperating with investigators and the investigation does not involve any other staff members or students in Hartford.

"The Hartford Police Department has informed Hartford Public Schools that Mr. Eduardo Genao is under investigation and the district is fully cooperating with this investigation. As of April 5th, Mr. Genao is no longer employed by Hartford Public Schools. Mr. Genao was employed by Hartford Public Schools since 2005, and his most recent position was Executive Director for Compliance. The alleged victim of this investigation is not a staff member or student of Hartford Public Schools. For further inquiries, please communicate with the Hartford Police Department," a statement from the school department says.